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Finding the Fourth Proportional to 55,008.41, 75,916.44 and 30,809.00

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Solution

The fourth proportional to 55,008.41, 75,916.44 and 30,809.00 is: 42,519.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,008.41 : 75,916.44 = 30,809.00 : x
  2. Step 2: Convert to fraction form
    55,008.41/75,916.44 = 30,809.00/x
  3. Step 3: Cross multiply
    55,008.41x = 75,916.44 × 30,809.00
  4. Step 4: Simplify right side
    55,008.41x = 2,338,909,220.38
  5. Step 5: Solve for x
    x = 2,338,909,220.38/55,008.41
  6. Step 6: Final answer
    x = 42,519.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.